IP Library Granted Patent US 9,874,663
Granted Patent B2
US 9,874,663 · App. 14/775,327 · Granted Jan 23, 2018

Optical element and optoelectronic component comprising optical element

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Quick Facts
Patent No.
US 9,874,663
App. No.
14/775,327
Granted
Jan 23, 2018
Kind
B2
Abstract

An optical element has a first surface and a second surface, wherein a tooth structure having a multiplicity of teeth oriented in a second direction is arranged on the first surface, a stepped lens having a multiplicity of steps oriented in a first direction is arranged on the second surface, and the tooth structure forms a total internal reflection lens.

Claims (29)

1. An optical element having a first surface and a second surface, wherein:

a tooth structure having a multiplicity of teeth oriented in a second direction is arranged on the first surface,

a stepped lens having a multiplicity of steps oriented in a first direction is arranged on the second surface, and

the tooth structure forms a total internal reflection lens.

2. The optical element as claimed in claim 1 , wherein the first direction and second direction form an angle of 85° to 95°.

3. The optical element as claimed in claim 1 , wherein a midpoint of the first surface is covered by the tooth structure.

4. The optical element as claimed in claim 1 , wherein the optical element comprises an optically transparent plastic.

5. The optical element as claimed in claim 1 , wherein the first surface and the second surface are configured essentially rectangularly.

6. The optical element as claimed in claim 1 , wherein the optical element comprises a frame enclosing the first surface and the second surface.

7. The optical element as claimed in claim 1 , wherein the optical element shapes a radiation profile of an electromagnetic radiation emerging from a radiation surface having a defined edge length.

8. The optical element as claimed in claim 7 , wherein the teeth of the tooth structure have an average tooth height of 5% to 20% of the edge length.

9. The optical element as claimed in claim 7 , wherein two teeth of the tooth structure have different tooth heights.

10. The optical element as claimed in claim 7 , wherein two neighboring teeth of the tooth structure have a tooth spacing of 5% to 20% of the edge length.

11. The optical element as claimed in claim 7 , wherein the teeth of the tooth structure are curved in a plane perpendicular to the first direction, and

the curvature has a radius of curvature of at least two times the edge length.

12. The optical element as claimed in claim 7 , wherein the steps of the stepped lens structure have a maximum step height of 5% to 20% of the edge length.

13. The optical element as claimed in claim 7 , wherein two steps of the stepped lens structure have different step heights.

14. The optical element as claimed in claim 7 , wherein two neighboring steps of the stepped lens structure have a step spacing of 5% to 30% of the edge length.

15. The optical element as claimed in claim 7 , wherein the tooth structure and the stepped lens structure have a distance between them of 30% to 120% of the edge length.

16. The optical element as claimed in claim 7 , wherein a central section of the tooth structure is further away from the stepped lens structure than a lateral section of the tooth structure by a length, and

the length is 20% to 50% of the edge length.

17. An optoelectronic component having an optoelectronic semiconductor chip and an optical element as claimed in claim 1 .

18. The optoelectronic component as claimed in claim 17 , wherein the first surface of the optical element faces toward the optoelectronic semiconductor chip.

19. The optoelectronic component as claimed in claim 18 , wherein an upper side facing toward the optical element of the optoelectronic semiconductor chip has a distance from the first surface of the optical element of 20% to 70% of an edge length of a radiation emission surface of the optoelectronic semiconductor chip.

20. An optical element having a first surface and a second surface, wherein:

a tooth structure having a multiplicity of teeth oriented parallel to a y-axis and in a second direction is arranged on the first surface,

a stepped lens having a multiplicity of steps oriented parallel to an x-axis and in a first direction is arranged on the second surface,

the tooth structure forms a total internal reflection lens,

the teeth are not curved around a z-direction, but may be curved around the x-axis, the teeth are parallel to an x-z-plane formed by the x and z axes, the steps are parallel to the x-z-plane, but not necessarily parallel to the x-axis.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 3, 2020
From: OSRAM OPTO SEMICONDUCTORS GMBH
To: OSRAM OLED GMBH
Reel/Frame 051467/0906 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 5, 2015
From: STREPPEL, ULRICH
To: OSRAM OPTO SEMICONDUCTORS GMBH
Reel/Frame 036724/0849 →